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Sweet origin of gum

1-MIN READ1-MIN
SCMP Reporter

HOW do people make bubble gum? Bubble gum is made of sugar, flavourings and a synthetic elastomer, which is like a stretchy spaghetti.

Bubble gum loses its flavour as the enzymes in the saliva in your mouth begin the process of digestion and break down the gum.

An elastomer is a chemical product that imitates the natural thing. A natural elastomer, for example, is the latex that comes from rubber trees.

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How are chalkboards made and why are the majority of them green? Modern chalkboards are made from a sheet of steel with green or black porcelain sprayed onto it.

The porcelain is then baked in an oven.

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The steel-and-porcelain sheet is glued to a particle-board core. A porcelain-steel chalkboard can last up to 50 years! By the way, in the old days, chalkboards were made from the natural material known as slate, which is black. Today, many people prefer to use green.

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